Form 4 for COLB COLUMBIA BANKING SYSTEM, INC.
Accepted 2026-09-04 16:41:52 ET · period of report 2026-09-02 · accession 0001084960-26-000007 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-04 16:41 | 2026-09-02 | COLB | LAGOMARSINO SIMONE | Dir | A - Grant | $0.00 | +2,670 | 2,670 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-09-02 | A | A | 2,670 | $0.00 | 2,670 | D | — | — |